North Eastern States of India and Assam in particular has a history of growing exotic varieties of rice. The crops have enormous diversity in the region, which has resulted due to highly variable rice growing ecosystems. Besides, the region is inhabited by a large number of ethnic groups whose preference also varies from one another. All these factors are responsible for evolution of a large number of varieties in the region.
Most of these have been in use from time immemorial with traditional method of preparation. Unknowingly people have selected many useful cultivars, which have commercial value in the present-day world in which people prefer to have varieties of tastes. Bora Rice is one such rice that has been grown by the farmers of the state to meet up their domestic consumptions. This class of rice is required to prepare a number of food items during any festival, religious occasions and ceremonies. Many communities in the region also prepare high class rice beer out of bora rice.